Parts of the Respiratory (Breathing) System Worksheet | Teaching ... - Free Printable

Let's solve each part of this worksheet step by step.

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1) Unscramble the parts of the Respiratory System

We are given scrambled words. Let’s unscramble them:

a) otlirns → Larynx
b) nyxrahp → Pharynx
c) airxny → Larynx (again, possibly a typo or duplicate)
d) guln → Lung
e) bohcsur → Bronchus
f) aipgamrhd → Diaphragm
g) rhcioc → Trachea
h) nocelihorb → Bronchiole
i) aievol → Alveoli
j) otuhm → Mouth
k) rthceaa → Trachea (again)

So, the correct answers are:

a) Larynx
b) Pharynx
c) Larynx
d) Lung
e) Bronchus
f) Diaphragm
g) Trachea
h) Bronchiole
i) Alveoli
j) Mouth
k) Trachea

> Note: Some terms appear more than once (like "Larynx" and "Trachea"), which might be intentional for repetition or could be a mistake.

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2) Label the parts on this diagram of the Respiratory System

Looking at the diagram:

- Nasal cavity is already labeled.
- The first blank near the nose and mouth likely refers to the Mouth (or oral cavity).
- The tube going down from the nasal cavity and mouth is the Pharynx.
- Below that is the Larynx (voice box).
- Then comes the Trachea (windpipe).
- It splits into Right main bronchus and Left main bronchus, already labeled.
- Inside the lungs: Right lung and Left lung are labeled.
- At the bottom, the large muscle below the lungs is the Diaphragm.
- Inside the lungs, tiny air sacs are Alveoli (though not directly labeled in blanks).

Now, label the green boxes:

From top to bottom:

1. Nasal cavity (already labeled)
2. Mouth (just below nasal cavity — the oral cavity)
3. Pharynx (throat, behind nasal cavity and mouth)
4. Larynx (below pharynx)
5. Trachea (windpipe, below larynx)
6. Right lung and Left lung (already labeled)
7. Diaphragm (bottom-most structure)

So, fill in:

- First box (mouth): Mouth
- Second box (pharynx): Pharynx
- Third box (larynx): Larynx
- Fourth box (trachea): Trachea
- Fifth box (diaphragm): Diaphragm

Note: The right and left bronchi are already labeled, so no need to fill those.

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3) Find the parts of the Respiratory System (Word Search)

We have a word search grid with these letters:

```
O S B R O N C H I
B X N O S E A A B
T R Y K V J R L R
K X E G M W B Y O
M N L A E I O E N
H Y O C T N N O C
L R I L S H D L H
I A H A Y A I U
R H C R S L O N S
T P N Y M E X N G
S K O N O E I X N
O E R X U S D Y U
N E B X T P E L
D I A P H R A G N
S A E H C A R T R
```

We need to find the following respiratory parts (from the list):

- Nose
- Mouth
- Pharynx
- Larynx
- Trachea
- Bronchus
- Bronchiole
- Lungs
- Diaphragm
- Alveoli

Let’s locate them:

- Nose: Found in row 2 → "N O S E"
- Mouth: Not found? Wait, maybe “Mouth” isn’t there. But “Mouth” has an 'o' and 'u', but let’s check if it’s hidden. Actually, “Mouth” might not be present. Maybe it’s “Mouth” as "MOUTH" — look for it: Row 10: "S K O N O E I X N" — no. Row 8: "I A H A Y A I U" — no. Perhaps it's not included. But we can skip if not found.

Wait — let's check “Mouth” — maybe not in grid. But perhaps “Mouth” is not required since others are.

Let’s find what is there:

- Nose: Row 2: B X N O S E A A B → “N O S E” starting at column 3 → YES
- Pharynx: Look for "PHARYNX". Try row 10: T P N Y M E X N G → "P N Y" — no. Row 9: R H C R S L O N S — no. Try vertically? Maybe not. Wait — “Pharynx” may not be here.

Wait — better approach: look for known terms.

- Bronchus: Look for “BRONCHUS”. Row 1: O S B R O N C H I → B R O N C H I → almost. “B R O N C H I” — missing “U” — wait, “Bronchus” ends in “us”, but here it's “Bronchi” — plural?

Yes! “Bronchi” is in row 1: B R O N C H I → yes!

- Bronchiole: Look for “BRONCHIOLE” — long word. Hard to spot. Maybe not in grid.

- Lungs: Look for “LUNGS” — Row 4: M N L A E I O E N — “L” at start, then “A” — no. Row 6: H Y O C T N N O C — no. Row 10: S K O N O E I X N — no. Row 13: N E B X T P E L — no. Row 14: D I A P H R A G N — no. Row 15: S A E H C A R T R — no. Maybe “Lungs” not present.

Wait — try “Diaphragm” — Row 14: D I A P H R A G N → D-I-A-P-H-R-A-G-N → YES! “Diaphragm”

- Trachea: Look for “TRACHEA” — Row 15: S A E H C A R T R → reverse? S A E H C A R T R → backwards: R T A C H A E S — “TRACHEA”? No. Wait: “Trachea” is “T R A C H E A” — look at row 15: S A E H C A R T R — no. But row 10: T P N Y M E X N G — “T” then “P” — no. Row 11: S K O N O E I X N — no. Row 12: O E R X U S D Y U — no. Row 13: N E B X T P E L — no. Row 14: D I A P H R A G N — no. Row 15: S A E H C A R T R — “E H C A R T R” — close to “Trachea” backward? “R T A C H A E” — yes! Reverse of “Trachea” is “A E C H A R T” — no. Wait: “Trachea” spelled forward: T-R-A-C-H-E-A. Is it hidden?

Wait — look at row 15: S A E H C A R T R — if you read backwards: R T A C H A E S → R-T-A-C-H-A-E-S — almost “Trachea” — but extra S. So “Trachea” is not clearly visible.

But “Larynx” — look for “LARYNX” — row 2: B X N O S E A A B — no. Row 3: T R Y K V J R L R — “L R” — no. Row 4: M N L A E I O E N — “L A” — maybe “Larynx”? No. Row 13: N E B X T P E L — “L” at end. Row 14: D I A P H R A G N — no. Row 15: S A E H C A R T R — no.

Wait — perhaps “Alveoli” — look for “ALVEOLI” — row 5: M N L A E I O E N — “A E I O E” — no. Row 6: H Y O C T N N O C — no. Row 7: L R I L S H D L H — no.

But “Nose” — row 2: “N O S E” — yes.

“Diaphragm” — row 14: D I A P H R A G N — yes.

“Bronchi” — row 1: B R O N C H I — yes.

“Pharynx” — not obvious. But maybe “Pharynx” is not in the grid.

Wait — look at row 10: T P N Y M E X N G — “P N Y” — no.

Alternatively, perhaps the word search includes:

- Nose ✔
- Bronchi ✔
- Diaphragm ✔
- Trachea — maybe not?
- Lungs — not found.

Wait — “Larynx” — look at row 3: T R Y K V J R L R — “R L R” — no.

Row 13: N E B X T P E L — “P E L” — no.

Wait — maybe “Mouth” — not found.

But “Alveoli” — not found.

Perhaps only Nose, Bronchi, Diaphragm are present.

Wait — look at row 5: M N L A E I O E N — “L A E I O E” — “Alveoli” — no.

Wait — “Trachea” — perhaps written as “TRACHEA” — look at row 15: S A E H C A R T R — reverse: R T A C H A E S — almost “Trachea” — but not quite.

Wait — perhaps “Lungs” — look at row 4: M N L A E I O E N — “L A E I O E” — no.

Maybe the intended words are:

- Nose ✔
- Bronchi ✔
- Diaphragm ✔
- Pharynx — not found
- Larynx — not found
- Trachea — not found

Wait — maybe “Throat” or something else?

Alternatively, “Alveoli” — look at row 6: H Y O C T N N O C — no.

Wait — “Mouth” — look at row 1: O S B R O N C H I — no.

Wait — “Airway” — not listed.

Actually, upon closer inspection:

- “Trachea” — not clearly visible.
- “Larynx” — not visible.
- “Pharynx” — not visible.

But “Bronchiole” — too long.

Wait — “Alveoli” — maybe not.

But “Lungs” — row 11: S K O N O E I X N — “O N O” — no.

Wait — perhaps the only ones are:

✔ Nose – row 2: N O S E
✔ Bronchi – row 1: B R O N C H I
✔ Diaphragm – row 14: D I A P H R A G N

And possibly “Mouth” — not found.

But “Trachea” — look at row 15: S A E H C A R T R — if you read backwards: R T A C H A E S — “R T A C H A E” — close to “Trachea” — but not exact.

Wait — “Trachea” — maybe it's hidden diagonally?

Try: from row 15, col 7: “C” — row 14, col 6: “A” — no.

Alternatively, perhaps “Larynx” — row 3: T R Y K V J R L R — “R L R” — no.

Wait — maybe the word search is designed to find:

- Nose
- Bronchi
- Diaphragm
- Alveoli — not found
- Lungs — not found

But perhaps “Alveoli” is spelled differently?

Wait — “Alveoli” — look at row 6: H Y O C T N N O C — “O C” — no.

Alternatively, “Lungs” — not found.

But “Pharynx” — not found.

Wait — perhaps “Trachea” is not in the grid.

Alternatively, “Larynx” — row 13: N E B X T P E L — “P E L” — no.

Wait — perhaps “Mouth” — row 1: O S B R O N C H I — no.

After careful review, the only clearly identifiable words are:

- Nose (row 2: N O S E)
- Bronchi (row 1: B R O N C H I)
- Diaphragm (row 14: D I A P H R A G N)

Others may not be present or are hard to spot.

But “Trachea” — look at row 15: S A E H C A R T R — if you read backwards from the end: R T A C H A E S — “R T A C H A E” — still not “Trachea”.

Wait — “Trachea” = T-R-A-C-H-E-A

Look at row 15: S A E H C A R T R — positions:
- Col 1: S
- Col 2: A
- Col 3: E
- Col 4: H
- Col 5: C
- Col 6: A
- Col 7: R
- Col 8: T
- Col 9: R

Now, reverse: R T A C H A E S — R-T-A-C-H-A-E-S — that’s “RtachaeS” — not helpful.

But “Trachea” — maybe it's not in the grid.

Alternatively, “Alveoli” — not found.

So, likely the intended words are:

- Nose ✔
- Bronchi ✔
- Diaphragm ✔

And possibly “Lungs” — not found.

But wait — “Lungs” — look at row 4: M N L A E I O E N — “L A E I O E” — no.

Wait — “Larynx” — look at row 3: T R Y K V J R L R — “R L R” — no.

Perhaps the word search is incomplete.

But based on common word searches, the likely ones are:

✔ Nose
✔ Bronchi
✔ Diaphragm
✔ Trachea — maybe not
✔ Pharynx — not found

Wait — “Trachea” — look at column 8:

Row 1: I
Row 2: B
Row 3: R
Row 4: Y
Row 5: E
Row 6: C
Row 7: L
Row 8: I
Row 9: S
Row 10: N
Row 11: N
Row 12: U
Row 13: E
Row 14: N
Row 15: R

No.

Alternatively, “Trachea” — maybe not in the grid.

So, final answer for #3: Circle or highlight:

- Nose – row 2, columns 3–6
- Bronchi – row 1, columns 3–9
- Diaphragm – row 14, columns 1–9

(Other terms may not be present.)

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4) Select one or two parts and describe what they are used for in the Respiratory System

Let’s pick Lungs and Diaphragm.

#### Lungs
The lungs are the main organs of the respiratory system. They are responsible for gas exchange — taking in oxygen from the air and releasing carbon dioxide (a waste product of cellular respiration). Air enters the lungs through the trachea and bronchi, reaching tiny air sacs called alveoli. In the alveoli, oxygen diffuses into the bloodstream, while carbon dioxide moves from the blood into the air to be exhaled.

#### Diaphragm
The diaphragm is a dome-shaped muscle located below the lungs. It plays a crucial role in breathing. When you inhale, the diaphragm contracts and moves downward, increasing the volume of the chest cavity and creating negative pressure that pulls air into the lungs. When you exhale, the diaphragm relaxes and moves upward, reducing chest volume and pushing air out of the lungs.

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✔ Final Answers:

#### 1) Unscrambled Words:
a) Larynx
b) Pharynx
c) Larynx
d) Lung
e) Bronchus
f) Diaphragm
g) Trachea
h) Bronchiole
i) Alveoli
j) Mouth
k) Trachea

#### 2) Diagram Labels:
- First box (below nasal cavity): Mouth
- Second box (throat): Pharynx
- Third box (below pharynx): Larynx
- Fourth box (windpipe): Trachea
- Fifth box (bottom): Diaphragm

#### 3) Word Search:
Find:
- Nose – row 2, cols 3–6
- Bronchi – row 1, cols 3–9
- Diaphragm – row 14, cols 1–9

(Other terms may not be present.)

#### 4) Description:
- Lungs: Site of gas exchange; absorb oxygen and release carbon dioxide.
- Diaphragm: Muscle that controls breathing by expanding and contracting the chest cavity.

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